Skip to Main Content
 
Thought Leadership

Husch Blackwell Prevails in Third Straight IPR for Cascades

 

Published:

February 26, 2019

Related Industries:

Manufacturing Technology
News Releases

PTAB had previously determined that Essity’s asserted patents were invalid because their claims were anticipated by prior art or obvious.

The Patent Trial and Appeal Board (PTAB) entered a Final Written Decision providing Husch Blackwell client Cascades Canada ULC a complete victory in its patent dispute with Essity Hygiene and Health AB over the configuration of folding napkins used in dispensers. It was the third consecutive victory before PTAB for Cascades in its long-running dispute with Essity.

Previously in two separate inter partes review proceedings where Cascades was joined by Tarzana Enterprises LLC as Petitioner, PTAB had determined that Essity’s asserted patents were invalid because their claims were anticipated by prior art or obvious.

In the latest litigation Cascades challenged claims 1-15 of a third Essity patent-in-suit (U.S. Patent No. 8,273,443 B2) by requesting inter partes review after Essity initiated multiple patent lawsuits alleging infringement. Again PTAB found the asserted patent claims to be obvious and/or anticipated by prior art and that Cascades had “demonstrated by a preponderance of the evidence that challenged claims 1–15 are unpatentable over the prior art of record.”

PTAB’s previous Final Written Decisions in this series of disputes were entered February 1.

The Husch Blackwell team was led by Rudy Telscher and included Kara Fussner, Daisy Manning and Michael Annis.

Professionals:

Rudy Telscher

Partner

Kara R. Fussner

Partner

Daisy Manning

Partner
 

Stay updated.

Subscribe to receive Husch Blackwell’s news and insights.

Select your preferences